113865347772845 has 8 divisors (see below), whose sum is σ = 136638508710264. Its totient is φ = 91092217296384.

The previous prime is 113865347772823. The next prime is 113865347772871. The reversal of 113865347772845 is 548277743568311.

It can be written as a sum of positive squares in 4 ways, for example, as 77217361850281 + 36647985922564 = 8787341^2 + 6053758^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113865347772845 - 2¹² = 113865347768749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1628597 + ... + 15178373.

It is an arithmetic number, because the mean of its divisors is an integer number (17079813588783).

Almost surely, 2^{113865347772845} is an apocalyptic number.

It is an amenable number.

113865347772845 is a deficient number, since it is larger than the sum of its proper divisors (22773160937419).

113865347772845 is a wasteful number, since it uses less digits than its factorization.

113865347772845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15230479.

The product of its digits is 948326400, while the sum is 71.

The spelling of 113865347772845 in words is "one hundred thirteen trillion, eight hundred sixty-five billion, three hundred forty-seven million, seven hundred seventy-two thousand, eight hundred forty-five".